InterruptedException

public void openNewEbay() throws InterruptedException {
    // to click on open link on new tab
    Actions rightclick = new Actions(driver);
    WebElement elementlocator = driver
            .findElement(By.xpath("//li[@class='hl-cat-nav__js-tab']//a[contains(text(),'Electronics')]"));

    //rightclick.contextClick(elementlocator).sendKeys(Keys.ARROW_DOWN).sendKeys(Keys.ARROW_DOWN).sendKeys(Keys.RETURN).build().perform();
    Thread.sleep(3000);
    rightclick.contextClick(elementlocator).build().perform();
    Thread.sleep(5000);
    rightclick.sendKeys(Keys.ARROW_DOWN).sendKeys(Keys.RETURN).build().perform();

    rightclick.sendKeys(Keys.RETURN).build().perform();

    /*ArrayList tab = new ArrayList(driver.getWindowHandles());
    System.out.println(tab.size());*/



}

public void openNewEbay() throws InterruptedException {
    // to click on open link on new tab
    Actions rightclick = new Actions(driver);
    WebElement elementlocator = driver
            .findElement(By.xpath("//li[@class='hl-cat-nav__js-tab']//a[contains(text(),'Electronics')]"));

    //rightclick.contextClick(elementlocator).sendKeys(Keys.ARROW_DOWN).sendKeys(Keys.ARROW_DOWN).sendKeys(Keys.RETURN).build().perform();
    Thread.sleep(3000);
    rightclick.contextClick(elementlocator).build().perform();
    Thread.sleep(5000);
    rightclick.sendKeys(Keys.ARROW_DOWN).sendKeys(Keys.RETURN).build().perform();

    rightclick.sendKeys(Keys.RETURN).build().perform();

    /*ArrayList tab = new ArrayList(driver.getWindowHandles());
    System.out.println(tab.size());*/



}